.jiaoxiangz {
  width: 100vw;
  height: 190vh;
  background-color: #f2f2f2;
  .nav {
    width: 100vw;
    height: 100px;
    background-color: #ffffff;
    .zi {
      border-bottom: 1px solid #f2f2f2;
    }

    .jiao {
      font-weight: bold;
      font-size: 19px;
      margin-left: 10px;
    }
  }

  .card1 {
    width: 300px;
    height: 130px;
    background-color: #ffffff;
    margin-left: 39px;
    img {
      margin-top: 10px;
      width: 240px;
      height: 50px;
      margin-left: 19px;
    }
  }
  .card {
    width: 300px;
    height: 180px;
    background-color: #ffffff;
    margin-left: 39px;
  }
  .card3 {
    width: 300px;
    height: 400px;
    background-color: #ffffff;
    margin-left: 39px;
    .title {
      width: 60vw;
      text-align: center;
      margin-top: 10px;
      background-color: aqua;
      margin-left: 40px;
    }
    .title1 {
       width: 60vw;
      text-align: center;
      margin-top: 10px;
      background-color: yellow;
      margin-left: 40px;
    }
  }

  .card4{
     width: 300px;
    height: 250px;
    background-color: #ffffff;
    margin-left: 39px;
  }
}
